Taq Kisra, also known as the Arch of Ctesiphon, is the only remaining visible structure of the ancient city of Ctesiphon, a major Parthian and Sasanian metropolis. The massive brick arch is a testament to ancient engineering, though the surrounding area has little else remaining. Accessibility can be challenging due to the site's location and limited tourist infrastructure; checking with local authorities or tour operators is recommended for the latest conditions. Due to the complex history and political environment of the region, guided tours are strongly advised over solo visits for safety and to gain a deeper understanding of the site. Seasonal restrictions may apply due to weather conditions, particularly extreme heat in the summer months. The cost to visit is relatively low, but transportation to and from the site will likely be the biggest expense. A typical visit duration is about 1-2 hours.